World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Opacuincola Ponder, 1966. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=724577 on 2026-08-27
Ponder, W.F. (1966). On a subterranean snail and a tornid from New Zealand. Journal of the Malacological Society of Australia 10: 35–40.